Nut-lock.



m. 637,483. r Patented Ndv. 21, I899. E. T. PERRY.

NUT LOOK.

(Application filed July 28, 1599.)

(No Model.)

WTNEESEE: INVENTCI $48 M a I W' @W NITED STATES ATE FFICE- EVERETT T.PERRY, OF WILMINGTON, MASSACHUSETTS.

NUT-LOCK.

SPECIFICATION forming part of Iletters Patent No. 637,483, datedNovember 21, 1899.

Application filed July 28, 1899. Serial No. 725,400. (No model.)

To all whmn it may concern:

Be it known that I, EVERETT T. PERRY, of North Wilmington, in the countyof Middlesex and State of Massachusetts, have invented certain new andusefullmprovements in Nut- Locks, of which the following is aspecification.

This invention relates particularly to that class of nut-locks adaptedfor use on the railjoints of railroads; and it has for its object toprovide a simple, secure, and cheap nutlock for the purposes named andanalogous purposes.

The invention consists in the novel features of construction andarrangement which I will now proceed to describe and claim.

Of the accompanying drawings, Figure 1 represents a side elevation of arailjoint equipped with my improved nut-lock. Fig. 2 represents anenlarged section on the line 2 2 of Fig. 1. Figs. 3 and 4 represent,respectively, detail perspective views of the locking bar or plate andof one of the nuts.

The same reference characters indicate the same parts in all thefigures.

Referring to the drawings, a a designate two adjoining rail-sections,and b designates a tie-plate or member, shown in the present instance asa single plate embracing the rails on either side thereof; but it willbe understood that my invention is equally capable of being used inconnectionwith separate tieplates of the well-known form.

0 c designate the bolts passing through the rail and tie-plate, and c cdesignate the nuts screwed on the ends of said bolts.

01 represents my improved locking plate or bar, the same being T-shapedin cross-section, the ends of its vertical portion 2 engaging grooves c0 which are formed on opposite sides of the nuts 0, approximately in themiddle portion of said sides, while its horizontal portion or flange 3overhangs the ends of the said vertical portion and rests on top of thenuts 0 c when in position. The said horizontal portion or flange 3 alsoextends laterally into contact with the tieplate I), and by closelyabutting the latter serves to prevent the locking-plate d from becomingdisplaced by jar or usage. The horizontal flange 3 is extended on bothsides of thevertical portion 2 of the locking-plate, so that the saidplate may be used with either side toward the tie-plate b. Onelockingplate d answers for two of the nuts 0 c, the said nuts beingthereby locked in pairs, as shown.

The horizontal flange 3 may instead of being extended on both sides ofthe vertical part 2 of the nut-lock be extended on only one side of saidportion, this construction being attained by omitting the projectingpart of said flange 3 from one side of the nut-lock shown in thedrawings, thus giving said nutlock an L shape in cross-section.

I claim- A device of the character specified, comprising the plate 1),bolts 0 c, the nuts 0 c grooved on their side faces, and a locking baror plate 01 consisting of a vertical portion having end edges adapted tosimultaneously engage the groove in each of the two nuts and ahorizontal portion having its ends projecting over and lying flatwiseupon the top of the nuts, one edge of said horizontal portion closelyabutting the outer face of the plate I).

In testimony whereof I have affixed my signature in presence of twowitnesses.

EVERETT T. PERRY.

Witnesses:

CHESTER W. CLARK, MARY MEROEDA GRANFIELD.

